Khao Yai National Park is part of the UNESCO-listed Dong Phaya Yen-Khao Yai forest complex, one of Southeast Asia’s best preserved forests. With more than 2000 square km of forest and grassland, this park shelters diverse wildlife such as bears, gibbons, elephants and hornbills. The many waterfalls, included Haew Suwat, immortalized in Boyle’s movie ‘The Beach’, and the well preserved nature make hiking and biking unique experiences.